Seagate NAS 400 User's Guide download pdf (Page 59)

BlackArmor® NAS 440/420 User Guide (Version 3) 63

NTP (Network Time Protocol) server

Synchronizes the date and time of computers and servers on a network, based on

Coordinated Universal Time (UTC).

parity

Data created in volumes with RAID 5 protection that’s used to reconstruct files if one of the

disk drives in the server fails. See also RAID 5.

private share

A folder that is accessible only to users with permission granted by the share’s owner.

RAID

Redundant Array of Independent Disks. A technology that combines disk drives together for

improved performance and fault tolerance (the ability to withstand the failure of a disk drive).

RAID 0

See stripe.

RAID 1

See mirror.

RAID 5

A level of RAID protection. A volume with RAID 5 is built from a minimum of three disk drives,

and uses data striping and parity data to provide redundancy. (Parity is extra information

that’s used to re-create data if a disk drive fails. In volumes with RAID 5, parity data is striped

evenly across the disk drives with the stored data.) Parity data provides data protection, and

striping improves performance. See also stripe.

RAID 10

A level of RAID protection. A volume with RAID 10 is built from two or more equal-sized RAID

1 volumes. Data in a volume with RAID 10 is both striped and mirrored. Mirroring provides

data protection, and striping improves performance. See also mirror, and stripe.

remote access

Access to the server from a computer that is not on your local network. For instance,

accessing the server from a client’s computer, over the Internet, is remote access.

Remote access can also refer to shutting down or resetting the server using BlackArmor

Manager instead of physically pressing the Power button. See also local access.

RSA key

An encryption decoder that’s part of SSL, a type of encryption used to protect data being sent

over a network or the Internet. “RSA” stands for Rivest, Shamir, and Adelman, who invented

the technology.

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Seagate NAS 400 User's Guide Page 59